EP 1921664 A1 20080514 - Electric lamp with light-absorbing coating, precursor suspension for such a coating and method of making such a lamp
Title (en)
Electric lamp with light-absorbing coating, precursor suspension for such a coating and method of making such a lamp
Title (de)
Elektrische Lampe mit lichtabsorbierender Beschichtung, Ausgangsmischung für eine solche Beschichtung und Verfahren zur Herstellung einer solchen Lampe
Title (fr)
Lampe électrique avec revêtement absorbant la lumière, suspension de départ pour un tel revêtement et procédé pour fabriquer une telle lampe
Publication
Application
Priority
EP 06123731 A 20061109
Abstract (en)
The electric lamp has a quartz glass lamp vessel (10) in which an electric element (3,4) is accommodated. The lamp vessel locally has a light-absorbing, non-reflective coating (11,12). The coating mainly consists of iron, iron oxide, silicon, and silicon dioxide, the ratio of the weight percentages of iron compounds and silicon compounds being in the range of 0.17 <= iron compounds/ silicon compounds <= 12, and the ratio of the weight percentages of silicon and silicon dioxide being in the range of 0.5 <= silicon/ silicon dioxide <= 50.
IPC 8 full level
H01J 61/35 (2006.01); C03C 17/30 (2006.01)
CPC (source: EP KR US)
C03C 17/004 (2013.01 - EP US); C03C 17/009 (2013.01 - EP US); C09D 5/00 (2013.01 - EP US); H01J 61/35 (2013.01 - EP US); H01K 1/32 (2013.01 - EP KR US); C03C 2217/213 (2013.01 - EP US); C03C 2217/217 (2013.01 - EP US)
Citation (search report)
- [DA] DE 3827451 C1 19891012
- [DA] DE 2837280 A1 19800306 - PATENT TREUHAND GES FUER ELEKTRISCHE GLUEHLAMPEN MBH
- [A] WO 9531001 A1 19951116 - PHILIPS ELECTRONICS NV [NL], et al
- [A] WO 9615548 A1 19960523 - PHILIPS ELECTRONICS NV [NL], et al
- [A] US 3961968 A 19760608 - WALES WAYNE F
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
EP 1921664 A1 20080514; AT E459094 T1 20100315; CN 101536142 A 20090916; CN 101536142 B 20101222; DE 602007005028 D1 20100408; EP 2089896 A2 20090819; EP 2089896 B1 20100224; JP 2010509723 A 20100325; JP 5150640 B2 20130220; KR 101407430 B1 20140620; KR 20090092795 A 20090901; US 2010066231 A1 20100318; US 8040065 B2 20111018; WO 2008056319 A2 20080515; WO 2008056319 A3 20080703
DOCDB simple family (application)
EP 06123731 A 20061109; AT 07849088 T 20071106; CN 200780041581 A 20071106; DE 602007005028 T 20071106; EP 07849088 A 20071106; IB 2007054488 W 20071106; JP 2009535847 A 20071106; KR 20097011818 A 20071106; US 51351607 A 20071106